268856385 has 24 divisors (see below), whose sum is σ = 500403456. Its totient is φ = 122905440.

The previous prime is 268856383. The next prime is 268856387. The reversal of 268856385 is 583658862.

It is an interprime number because it is at equal distance from previous prime (268856383) and next prime (268856387).

It is not a de Polignac number, because 268856385 - 2¹ = 268856383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268856381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182161 + ... + 183630.

It is an arithmetic number, because the mean of its divisors is an integer number (20850144).

Almost surely, 2^268856385 is an apocalyptic number.

It is an amenable number.

268856385 is a deficient number, since it is larger than the sum of its proper divisors (231547071).

268856385 is a wasteful number, since it uses less digits than its factorization.

268856385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365813 (or 365806 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The square root of 268856385 is about 16396.8407017937. The cubic root of 268856385 is about 645.4165808374.

The spelling of 268856385 in words is "two hundred sixty-eight million, eight hundred fifty-six thousand, three hundred eighty-five".